https://bugs.freedesktop.org/show_bug.cgi?id=110888
--- Comment #2 from Christian König christian.koenig@amd.com --- Looks like a NULL pointer check is missing somewhere in amdgpu_vm_init() to me.
But in general you are running out of system memory, not video memory. So whatever you try to do here won't work in general unless you either add more system memory or add a swap file.